Starting on October 19, 2021, we will enable single-sign-on for our Plesk Support Center to provide a seamless login/account experience. This implies that you’ll be able to use a single account across any of our web-facing properties.
To be prepared for this change and to avoid the need to register during your next ticket submission after the change, we encourage you to create an account here before October 19 using the same email address as your current Zendesk login (support account). It’s essential that you use the same email address on our support center to ensure that your tickets stay attached to the same account. You will continue to use ZenDesk authentication until we switch over to single-sign-on on October 19th.

Customized Dovecot configuration file /etc/dovecot/dovecot.conf is overwritten after Plesk updates




  • Avatar
    Arturo Diehl (Edited )

    Hi. On my server I am trying to make SSL work, since I install a purchased external certificate, but the thunderbird mua rejects me when trying to connect to STARTTLS or SL / TLS.

    But watching dovecot.conf I observe that imaps and pop3s do not appear:

    protocols = imap pop3

    Question: When installing the security certificate on the mail server, shouldn't the protocols be automatically modified by enabling SSL in dovecot?

    In maillog I have:

    dovecot: imap-login: Disconnected (no auth attempts in 1 secs): user = <>, rip =, lip =, TLS handshaking: SSL_accept () failed: error : 14094416: SSL routines: ssl3_read_bytes: sslv3 alert certificate unknown: SSL alert number 46


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  • Avatar
    Anzhelika Khapaknysh

    Hi @Arturo Diehl,

    Please check this article for details.

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